Efficient production method of 7XXX aluminum alloy rivet wire for aerospace

The invention discloses an efficient production method of 7XXX aluminum alloy rivet wires for aerospace, and relates to the technical field of aluminum alloy machining. The invention aims to solve the problems of poor preparation formability due to poor nailing continuity and high hardness caused by small weight of a wire disc and the problem of cracking during rivet heading caused by non-uniformity of a structure. The method comprises the following steps: heating a 7XXX aluminum alloy cast ingot, preserving heat, air-cooling to room temperature, sawing and turning, heating, and rolling in a hot rolling mill; and then annealing and drawing are conducted, and the 7XXX aluminum alloy rivet wire for aerospace is obtained. According to the production method, the production mode that a large-specification cast ingot is subjected to hot rolling and then cold drawing is adopted, the efficient and short-process production procedure is achieved, the production mode that large cold deformation is matched with the annea